io.gatling.http.util.GZIPHelper.scala Maven / Gradle / Ivy

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/**
 * Copyright 2011-2014 eBusiness Information, Groupe Excilys (www.ebusinessinformation.fr)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * 		http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.gatling.http.util

import java.io.{ ByteArrayOutputStream, InputStream }

import com.jcraft.jzlib.GZIPOutputStream

import io.gatling.core.util.IO._

object GZIPHelper {

  def gzip(string: String): Array[Byte] = gzip(string.getBytes)

  def gzip(bytes: Array[Byte]): Array[Byte] = {
    val bytesOut = new ByteArrayOutputStream(bytes.length)

    withCloseable(new GZIPOutputStream(bytesOut)) {
      _.write(bytes)
    }

    bytesOut.toByteArray
  }

  val GzipDefaultBufferSize = 512

  def gzip(in: InputStream, bufferSize: Int = GzipDefaultBufferSize): Array[Byte] = {

    val bytesOut = new ByteArrayOutputStream(bufferSize)

    withCloseable(new GZIPOutputStream(bytesOut)) {
      in.copyTo(_, bufferSize)
    }

    bytesOut.toByteArray
  }
}